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AMD will probably have a 32 core CPU by the time (If they are not bankrupt). It would offer a better performance since Xeon Phi CPUs are probably weaker. http:

by afsina 11y ago

AMD will probably have a 32 core CPU by the time (If they are not bankrupt). It would offer a better performance since Xeon Phi CPUs are probably weaker. http://wccftech.com/amd-exascale-heterogeneous-processor-ehp-apu-32-zen-cores-hbm2/ http://wccftech.com/amd-exascale-heterogeneous-processor-ehp...

cma 11y ago
32 core, or "32 core": http://www.pcworld.com/article/3003113/components-processors/lawsuit-alleges-amds-bulldozer-cpus-arent-really-8-core-processors.html http://www.pcworld.com/article/3003113/components-processors...
- afsina 11y ago
  Cores are real Zen cores with dedicated FPU units. This has nothing to do with bulldozer.
- greggyb 11y ago
  AMD's new Zen architecture implements SMT, similar to Intel's hyperthreading. The contention about core count on the Bulldozer architecture seems spurious to me. At the time Bulldozer was being developed, multi-core systems were just being introduced to the consumer market. It was unclear what sort of architecture would be most performant. AMD made a (bad only in hindsight) bet that Bulldozer would be a viable architecture for general purpose compute loads. It turns out that combining 1 FPU with two integer pipelines is not as effective as an SMT architecture. At the time Bulldozer was developed and released, what exactly constituted a core was still not precisely defined. It turns out that Intel's SMT architecture is much more effective, and thanks to market- and mind-share, people associate the definition of a core with Intel's specific implementation. AMD's new development is on an SMT architecture known as Zen. Like all AMD news and marketing, it sounds exciting. Hopefully they execute well and it actually turns out to be exciting.
mtanski 11y ago
However these still have higher bandwidth memory for streaming data in/out of processing. Increasing core count without increasing memory throughput only works for some types of problems (with high locality of data).
- afsina 11y ago
  Seems like they will be using Coherent Fabric. I think together with HBM, this can rival Intel offerings. http://www.fudzilla.com/news/processors/38402-amd-s-coherent-data-fabric-enables-100-gb-s http://www.fudzilla.com/news/processors/38402-amd-s-coherent...

by afsina 11y ago

cma 11y ago

32 core, or "32 core": http://www.pcworld.com/article/3003113/components-processors/lawsuit-alleges-amds-bulldozer-cpus-arent-really-8-core-processors.html http://www.pcworld.com/article/3003113/components-processors...

afsina 11y ago
Cores are real Zen cores with dedicated FPU units. This has nothing to do with bulldozer.
greggyb 11y ago
AMD's new Zen architecture implements SMT, similar to Intel's hyperthreading. The contention about core count on the Bulldozer architecture seems spurious to me. At the time Bulldozer was being developed, multi-core systems were just being introduced to the consumer market. It was unclear what sort of architecture would be most performant. AMD made a (bad only in hindsight) bet that Bulldozer would be a viable architecture for general purpose compute loads. It turns out that combining 1 FPU with two integer pipelines is not as effective as an SMT architecture. At the time Bulldozer was developed and released, what exactly constituted a core was still not precisely defined. It turns out that Intel's SMT architecture is much more effective, and thanks to market- and mind-share, people associate the definition of a core with Intel's specific implementation. AMD's new development is on an SMT architecture known as Zen. Like all AMD news and marketing, it sounds exciting. Hopefully they execute well and it actually turns out to be exciting.

mtanski 11y ago

However these still have higher bandwidth memory for streaming data in/out of processing. Increasing core count without increasing memory throughput only works for some types of problems (with high locality of data).

afsina 11y ago
Seems like they will be using Coherent Fabric. I think together with HBM, this can rival Intel offerings. http://www.fudzilla.com/news/processors/38402-amd-s-coherent-data-fabric-enables-100-gb-s http://www.fudzilla.com/news/processors/38402-amd-s-coherent...